Mobile transmitter for heart rate monitor, produces data message comprising preset number of time references obtained from memory, and transmits message to receiver

摘要

The transmitter has a detector (81) which detects occurrence of an event, and generates a detection signal accordingly. A time reference is obtained based on the transmitter response to each detection signal, and is recorded in a memory. The data message comprising preset number of time reference obtained is transmitted to a receiver such as wristop computer (43). Independent claims are included for the following: (1) receiver device; (2) heart-rate monitor; (3) tachometer for measuring rate of resolution; (4) speedometer for measuring speed of a bicycle wheel; and (5) place counter.